JPS5829596B2

JPS5829596B2 - flash device

Info

Publication number: JPS5829596B2
Application number: JP1322977A
Authority: JP
Inventors: 伸二平田
Original assignee: West Electric Co Ltd
Current assignee: West Electric Co Ltd
Priority date: 1977-02-08
Filing date: 1977-02-08
Publication date: 1983-06-23
Also published as: JPS5397823A

Description

【発明の詳細な説明】本発明は写真撮影等に際して人工光源として用いられる
閃光装置に関し、特に発光量の増大や短時間の繰り返し
発光を行い得る閃光装置を提供しようとするものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flash device used as an artificial light source during photography, etc., and particularly to provide a flash device that can increase the amount of light emitted and repeatedly emit light for a short period of time.

従来の閃光装置は主放電コンデンサの充電エネルギーを
閃光放電管に与えて閃光を発するものが提案されていた
。A conventional flash device has been proposed that emits a flash by applying charging energy of a main discharge capacitor to a flash discharge tube.

そして、この閃光放電管からの発光量を増大させるため
には主放電コンデンサの容量を大きくしたり、この主放
電コンデンサの充電電圧を大きくしたりしていた。In order to increase the amount of light emitted from this flash discharge tube, the capacity of the main discharge capacitor has been increased or the charging voltage of this main discharge capacitor has been increased.

しかし、単一の閃光放電管に主放電コンデンサの大きな
充電エネルギーが与えられると、発光の色温度が変化し
て撮影結果を悪くしてしまったり、また閃光放電管が破
壊されてしまうという欠点があった。However, if a large amount of charging energy from the main discharge capacitor is applied to a single flash discharge tube, the color temperature of the emitted light may change, resulting in poor photographic results, and the flash discharge tube may be destroyed. there were.

さらには主放電コンデンサの容量および充電電圧を大き
くすると、規定量の充電に要する時間が長くなり、短時
間の繰り返し発光ができない等の欠点もあった。Furthermore, when the capacity and charging voltage of the main discharge capacitor are increased, the time required to charge the specified amount increases, resulting in disadvantages such as the inability to repeatedly emit light for a short period of time.

本発明は上記従来の閃光装置の欠点を解消し、複数の閃
光放電管を用いて所期の目的を達するものであり、以下
に本発明の一実施例として８個の閃光放電管を用いた閃
光装置について第１，２図とともに説明する。The present invention eliminates the drawbacks of the conventional flash device and achieves the intended purpose by using a plurality of flash discharge tubes. The flash device will be explained with reference to FIGS. 1 and 2.

第１図において、１は動作開始用のスイッチである。In FIG. 1, 1 is a switch for starting operation.

２は発光信号発生回路でパルス発生器３と、信号発生器
４とからなる。Reference numeral 2 denotes a light emission signal generation circuit, which includes a pulse generator 3 and a signal generator 4.

５は可動片５−１゜５−２．・・・・・・、５−８と、
この各可動接片５−１゜５−２．・・・・・・、５−８
に対応する固定接点１’、２’。5 is a movable piece 5-1°5-2.・・・・・・5-8 and
Each movable contact piece 5-1°5-2. ......, 5-8
Fixed contacts 1', 2' corresponding to.

３／、４／、１／／、７／、、、、、
、、３（ａ）、４（ａントヲ有スル切換手段である
。3/ , 4/ , 1// , 7/ , ,,,,
, 3(a), 4(a) This is a switching means.

この切換手段５の各可動接片５−１゜５−２．・・・・
・・、５−８には前記パルス発生器３のパルスが信号発
生器４により選択されて供給される。Each movable contact piece 5-1, 5-2.・・・・・・
..., 5-8, the pulses from the pulse generator 3 are selected and supplied by the signal generator 4.

６は前記固定接点に接続されたダイオードマトリクス回
路であり、７はこのダイオードマトリクス回路６を通過
した発光信号を受けて、後段に接続された発光部８にト
リガ信号を供給し、発光せしめるトリガ回路部である。6 is a diode matrix circuit connected to the fixed contact, and 7 is a trigger circuit that receives the light emission signal that has passed through the diode matrix circuit 6 and supplies a trigger signal to the light emitting section 8 connected at the subsequent stage to cause it to emit light. Department.

このトリガ回路部７は発光信号を受けて導通状態となる
スイッチによりトリガコンデンサが放電し、トリガトラ
ンスに高圧パルスを励起する複数のトリガ回路部単位７
−１、７−２、・・・・・・、７−８により構成さ
れている。This trigger circuit unit 7 includes a plurality of trigger circuit unit units 7 in which a trigger capacitor is discharged by a switch that becomes conductive in response to a light emitting signal, and excites a high voltage pulse to a trigger transformer.
-1, 7-2,..., 7-8.

また前記発光部８は前記トリガ回路部７からの高圧パル
スが印加されて励起する閃光放電管と、この閃光放電管
に発光エネルギーを供給する主放電コンデンサとよりな
る複数の発光郡単位８−１．８−２．・・・・・・、８
−８により構成され、この各発光郡単位８−１．８−２
．・・・・・・、８−８はそれぞれ前記トリガ回路部単
位７−１、７−２。The light emitting unit 8 includes a plurality of light emitting unit units 8-1 each including a flash discharge tube excited by applying a high voltage pulse from the trigger circuit 7, and a main discharge capacitor supplying luminous energy to the flash discharge tube. .8-2.・・・・・・、8
-8, each luminous group unit 8-1.8-2
．． ..., 8-8 are the trigger circuit unit units 7-1 and 7-2, respectively.

・・・・・・、γ−８に対応している。..., corresponds to γ-8.

次に、上記構成の閃光装置において、各発光郡単位８−
１、８−２、・・・・・・、８−８の各閃光放電青
金てを同時発光させる場合について説明する。Next, in the flash device having the above configuration, each light emitting group unit 8-
A case will be described in which the flash discharge blue metals 1, 8-2, . . . , 8-8 are made to emit light simultaneously.

まず、切換手段５の各可動接片５−１．５−２゜・・・
・・・、５−８をそれぞれ固定接点４′、４“、・・・
・・・４（８）に接続し、スイッチ１を導通状態にする
と、パルス発生器３が動作し、例えば第２図ａに示すよ
うな連続したパルス信号ａ１．ａ２．・・・・・・、ａ
８を発生し、このパルス信号ａ１＋ａ２ｔ・・・
・・・、ａ８が信号発生器４に印加される。First, each movable contact piece 5-1.5-2° of the switching means 5...
..., 5-8 are respectively fixed contacts 4', 4", ...
. . 4 (8) and the switch 1 is made conductive, the pulse generator 3 operates and generates a continuous pulse signal a1 . . . as shown in FIG. a2.・・・・・・、a
This pulse signal a1 + a2 t...
..., a8 is applied to the signal generator 4.

信号発生器４は前記パルス信号ａ１．ａ２．・・・・・
・、ａ８を受けて切換手段５の各可動接片５−１．５−
２．・・・・・・、５−８にそれぞれ前記パルス信号に
対応した第２図すに示す発光信号Ｐ１．Ｐ２．・・・・
・・、Ｐ８を印加する。The signal generator 4 generates the pulse signal a1. a2.・・・・・・
・In response to a8, each movable contact piece 5-1.5- of the switching means 5
2. . . . , 5-8 are the light emission signals P1 . . . shown in FIG. 2 corresponding to the pulse signals, respectively. P2.・・・・・・
..., P8 is applied.

そして、発光信号Ｐ１は固定接点４′およびダイオード
マトリクス回路６を介してトリガ回路部７の各トリガ回
路部単位？−１，７−２，・・・・・・、７−８の全て
に印加され、この各トリガ回路部単位７−１．７−２．
・・・・・・、７−８を動作せしめて発光郡単位８−１
．８−２．・・・・・・、８−８の各閃光放電管を同時
発光させる。Then, the light emission signal P1 is transmitted to each trigger circuit section of the trigger circuit section 7 via the fixed contact 4' and the diode matrix circuit 6. -1, 7-2, . . . , 7-8, and each trigger circuit unit 7-1, 7-2.
......, operate 7-8 and emit light group unit 8-1
．． 8-2. ......, each flash discharge tube 8-8 is made to emit light simultaneously.

その後、発光信号Ｐ２Ｐ３．・・・・・・、Ｐ８により
同様にして発光郡単位８−１、８−２、・・・・・
・、８−８の各閃光放電管を同時に順次発光させる。After that, the light emission signal P2P3. . . . Similarly, according to P8, light emitting group units 8-1, 8-2, . . .
. , 8-8 are made to emit light simultaneously and sequentially.

次に閃光放電管を一個ずつ順次に連続的に発光させる場
合について説明する。Next, a case will be described in which the flash discharge tubes are made to emit light one after another in succession.

切換手段５の可動接片５−１、５−２、・・・・・
・。Movable contact pieces 5-1, 5-2,... of the switching means 5
・.

５−８をそれぞれ固定接点１′、１“、・・・・・・１
（８）に接続し、スイッチ１を導通状態にすると前述の
場合と同様にして各可動接片５−１．５−２．・・・・
・・５−８にそれぞれ発光信号Ｐ１．Ｐ２．・・・・・
・、Ｐ８が印加される。5-8 as fixed contacts 1', 1",...1
(8) and make the switch 1 conductive, each movable contact piece 5-1, 5-2.・・・・・・
. . 5-8 respectively have a light emission signal P1. P2.・・・・・・
, P8 is applied.

そしてまず発光信号Ｐ１によりトリガ回路部単位７−１
が作動されて発光郡単位８−１の閃光放電管が発光する
。First, the trigger circuit unit 7-1 is triggered by the light emission signal P1.
is activated, and the flash discharge tube of the luminescent group unit 8-1 emits light.

その次に発光信号Ｐ２により同様にして発光郡単位８−
２の閃光放電管が発光し、以下同様にＰ３．・・・・・
・、Ｐ８により先部単位８−３．・・・・・・、８−８
の各閃光放電管が順次発光する。Then, in the same manner, the light emission group unit 8-
P3.2 flash discharge tube emits light, and the same goes for P3.2.・・・・・・
・, P8 allows the front unit 8-3. ......, 8-8
Each of the flash discharge tubes sequentially emits light.

また、切換手段５の可動接点５−１、５−２。Moreover, movable contacts 5-1 and 5-2 of the switching means 5.

・・・・・・、５−８を他の固定接点に切換接続すると
、各固定接点に対応してトリガ回路部単位が選択されて
動作し、このトリガ回路部単位に対応した発光郡単位の
閃光放電管が発光する。......, when 5-8 is switched and connected to another fixed contact, the trigger circuit unit is selected and operated corresponding to each fixed contact, and the light emitting group unit corresponding to this trigger circuit unit is activated. A flash discharge tube emits light.

上記説明から明らかなように、複数の閃光放電管を同時
にあるいは順次連続的にあるいは任意に選択的に発光さ
せることができ、写真撮影時の状況に応じて適正な発光
量および発光時間を得ることができる。As is clear from the above description, it is possible to cause a plurality of flash discharge tubes to emit light simultaneously, sequentially, or selectively, and to obtain an appropriate amount of light emission and light emission time depending on the situation at the time of photography. I can do it.

従って、カメラのシャッタ速度を任意の値に設定して同
調させることが可能となる。Therefore, it is possible to set and synchronize the shutter speed of the camera to an arbitrary value.

なお、上記実施例における可動接片の数およびトリガ回
路部単位の数および発光郡単位の数は８個に限定される
ものでないことは言うまでもない。It goes without saying that the number of movable contact pieces, the number of trigger circuit unit units, and the number of light emitting group units in the above embodiments are not limited to eight.

以上のように本発明によれば、切換手段の操作によって
、閃光放電管を連続発光させることができるとともに、
その光量を所望の値に設定することが容易な閃光装置を
得ることができ、しかも、主放電コンデンサの容量や、
充電電圧を大きくする必要もなく、従って発光の色温度
が変化したり、閃光放電管が破壊されてしまうというこ
とがない。As described above, according to the present invention, by operating the switching means, the flash discharge tube can be made to emit light continuously, and
It is possible to obtain a flash device in which the amount of light can be easily set to a desired value, and the capacity of the main discharge capacitor,
There is no need to increase the charging voltage, so there is no possibility that the color temperature of the emitted light will change or the flash discharge tube will be destroyed.

[Brief explanation of drawings]

第１図は本発明の一実施例を示す閃光装置の電気回路図
、第２図ａは同閃光装置のパルス発光器から発生された
連続パルス信号の時間特性図、第２図すは信号発生器か
ら発生された発光信号の時間特性図である。２・・・・・・発光信号発生回路、５・・・・・・切換
手段、６・・・・・・ダイオードマトリクス回路、７・
・・・・・トリガ回路部、８・・・・・・発光部。Fig. 1 is an electrical circuit diagram of a flash device showing an embodiment of the present invention, Fig. 2a is a time characteristic diagram of a continuous pulse signal generated from a pulse emitter of the flash device, and Fig. 2 is a signal generation diagram. FIG. 4 is a time characteristic diagram of a light emission signal generated from the device. 2...Light emission signal generation circuit, 5...Switching means, 6...Diode matrix circuit, 7.
...Trigger circuit section, 8... Light emitting section.

Claims

[Claims]

1. A light emission signal generation circuit that emits a plurality of light emission signals, a switching means that selectively passes the light emission signals, a diode matrix circuit that passes the light emission signals that have passed through this switching means, and a light emission signal that has passed through this diode matrix circuit. a trigger circuit unit consisting of a plurality of trigger circuit unit units that generate a trigger pulse in response to the trigger pulse; and a plurality of light emitting unit units that receive the trigger pulse and consume the charge charged in the main discharge capacitor to emit a flash from the flash discharge tube. A flash device comprising a light emitting section.